<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8" />
    <title>列表排序</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
</head>
<body>
    <div id="app">
        <h2>人员列表</h2>
        <input type="text" placeholder="请输入名字" v-model="keyWord">
        <button @click="sortType = 2">年龄升序</button>
        <button @click="sortType = 1">年龄降序</button>
        <button @click="sortType = 0">原顺序</button>
        <ul>
            <li v-for="p of filterPersons" :key="p.id">
                {{ p.name }} - {{ p.age }} - {{ p.sex }}
                <input type="text">
            </li>
        </ul>
    </div>

    <script>
        new Vue({
            el: '#app',
            data: {
                keyWord: '',
                sortType: 0,    // 0-原顺序，1-降序，2-升序
                persons: [
                    { id: '001', name: '马冬梅', age: 30, sex: '女' },
                    { id: '002', name: '周冬雨', age: 31, sex: '女' },
                    { id: '003', name: '周杰伦', age: 18, sex: '男' },
                    { id: '004', name: '温兆伦', age: 19, sex: '男' }
                ]
            },
            computed: {
                filterPersons() {
                    const arr = this.persons.filter(item => item.name.includes(this.keyWord))
                    if (this.sortType) {
                        arr.sort((p1, p2) => this.sortType === 1 ? p2.age - p1.age : p1.age - p2.age)
                    }
                    return arr
                }
            }
        })
    </script>
</body>
</html>